Vehicle-wheel.



Y EMILHAnrMA-N, or BROWNSVILLE, TEXAS.

cames.

Specification of Letters Patent.

Application filed October 31, 1908. Serial No. 460,473.

To all whom 'it may concern:

Be it known that I, EMIL HARTMAN, a citizen of the United States, residing at Brownsville, in the county of Cameron and State of T exas, have invented a new and useful Vehicle-llheel, of which the following is a specification.

This invention relates to vehicle wheels of that type utilizing yieldable connections between the rim and hub, so that pneumatic tires and the like may be dispensed with.

The object of the invention is to provide spokes of novel form for use in taking up or absorbing vibration, said spokes being neat and durable, and being so constructed .asto permit all necessary movement of the rim relative to the hub. A

lVith these and other objects in view the invention consists in certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claims. A

In the accompanying drawing which is a view partly in elevation and partly in sectionof a portion of a wheel embodying the present improvement, the preferred form of the invention has been shown.

Referring to the figuresby characters of reference, 1 designates the rim of the wheel, the same being provided with a tire 2 of rubber, or other suitable materiah'said tire .beingtretained in position in any' preferred manner as by means of vannular tianges 3. Parallel flanges 4 extend inwardly from the and mounted between the flanges at regular. intervals are the4 outerspoke mem bers 5, each of said members being provided, :it its outer end, with an eye 6, located -between iianfres 4 and mounted on a pivot pin 7 insertibletransversely through the flanges. Each section 5 is reduced annularly for a portion of its length so as to form av stem 8, the inner or free end of the stein being provided with an` annular packing ring 9 of any suitable construction, while another similar packing ring 10 is preferably formed on the section 5 close to the other end of the stem 8. This construction has been clearly shown in the drawings.

'The hub-11 has spaced annular anges 1 and 13 thereon, through which extend pivot pins 14 which may, if desired, be in the form of screws. Each of these pivot pins extends through one end of an inner spoke section 15 'having-an elongated bore 16 there-v n in the diameter of which equal to the di- Patented. 01315.26,

ameter of' the stem 8. This bore is counterbored for the greater portionof its length.' i' as indicated at 17 so as to receive the section 5 and the packing ring 10 thereon. An interior' shoulder 1S; is formed at the inner end v of the counter-bore. Flexible tubular connections-QO are provided between the spoke sections 15, said connections opening into the counter-bores 17, so that when the wheel'y is at rest and relieved of pressure, all of the counterbores will communicate vthrough these tubular connections. The sections 15 are designed to contain a clompressible .gase-v ous fiuid and when the sections 5 are forcedl longitudinally into the sections -15 the fluid contained within the sections 15 cushions the- It will be noted that when theM sections 5.

parts are in their normal positions the tube'sr" conned within the spokes is prevented from escaping. As the spokes move upwardly however the confined fluid returns the sections 5 to their initial positions and communication with the tubes 20 is restablished. It will be seen therefore that any loss of fluid due to leakage will not affect the operation. of the wheel as a cushioning medium. v

By pivotally mounting the' sections 'and 15 within the .rim and the hub respectively,

all necessaryv oscillating movement ofthe spokes is permitted and it will be seen therefore that the wheel will voperate e'licientlfy" to yreduce jarring, so as tol render the useof a pneumatic tire unnecessary. By provid+ ing the packing rings 9, the fluid confined within the inner'ends of the bores 16 is compressed during the inward lmov'ementof eachsection 5, this compressed luidthus yserving to assist-in cushioning the sections 5 and yieldingly retarding their movement.

1. A wheel comprising a hub, tubular spoke sections 4extending therefrom, tubes connecting said sections, the 'sections con stantly'coxnmunicating through the tube s,: tl v ke sections extending from rim, and s rim and 'slidably mounted within lar sections, said slidable sections constituting means forclosing communication -between the tubular sections. and the tubular connections during the movement of saidslidoble sections vin the direction of thehub.

A 2. A vehiclewheel comprising a'hub, tubuf lar spoke sections" pivotally connected there to, flexible tubular connections between sa'd sections, a rim, and spoke sections pivo y connected to the rim andsliabl mounted Withiny the tubular sections, said 'dable seci andels'o constituting meansl for cutting 'oi" tions constituting fiuid-compiressingmeans communication between the tubular spoke sections andthe tubularfconnections during 15 the movement of the slidable spoke sectionsl in the direction of the hub.

In testimony-that I claim the foregoing as my own,V I have hereto aiixed my signature 'in the presence oftwo witnesses. l EMIL -Witnesses: A

j -Jos CELAYA,

E. A. MGGARY. 

